Specifications

Migration from MC35 to MC35i
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MC35_MC35i_MIG_V01.03 Page 15 of 33 23.04.03
3.3 MC35 / MC35i – interface and connector comparison
MC35 and MC35i are equipped with a 40-pin 0.5mm pitch ZIF connector that connects to the
cellular application platform. The ZIF connector is physically the same for both devices.
MC35 and MC35i are PIN compatible, with the exception of the pins POWER and
ACCU_TEMP. Furthermore it should be noted that some of the MC35 signal names
were changed as well as MC35i does not support the charging functionality.
The host interface incorporates several sub-interfaces described in the following chapters.
Table 6 gives a brief overview of the PIN assignment.
Table 6: Host interface PIN assignment - ZIF connector
Pin No. Function IO
Signal Name
MC35 MC35i
1-5 Power supply I VBATT+ BATT+
6-10 Ground Ground GND GND
11-12 Charger I POWER POWER* - do not use
13 External supply voltage O VDD VDD
14 Battery Temperature I ACCU_TEMP not connected *
15 Ignition I /IGT /IGT
16 Serial Interface O /DSR0 /DSR0
17 Serial Interface O /RING /RING0
18 Serial Interface O /RxD0 /RxD0
19 Serial Interface I /TxD0 /TxD0
20 Serial Interface O /CTS0 /CTS0
21 Serial Interface I /RTS0 /RTS0
22 Serial Interface I /DTR0 /DTR0
23 Serial Interface 0 /DCD0 /DCD0
24 SIM I CCIN CCIN
25 SIM O CCRST CCRST
26 SIM IO CCIO CCIO
27 SIM O CCCLK CCCLK
28 SIM O CCVCC CCVCC
29 SIM Ground CCGND CCGND
30 RTC Backup I/O VDDLP VDDLP
31 Power Down I /PD /EMERGOFF
32 Synchronization O SYNC SYNC
33 Audio O EPP2 EPP2
34 Audio O EPN2 EPN2
35 Audio O EPP1 EPP1
36 Audio O EPN1 EPN1
37 Audio I MICP1 MICP1
38 Audio I MICN1 MICN1
39 Audio I MICP2 MICP2
40 Audio I MICN2 MICN2
* MC35i supports no battery charging functionality